70918428 has 48 divisors (see below), whose sum is σ = 191953664. Its totient is φ = 19958400.

The previous prime is 70918411. The next prime is 70918433. The reversal of 70918428 is 82481907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673 + ... + 11928.

Almost surely, 2^70918428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70918428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95976832).

70918428 is an abundant number, since it is smaller than the sum of its proper divisors (121035236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70918428 is a wasteful number, since it uses less digits than its factorization.

70918428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12682 (or 12680 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 70918428 is about 8421.3079744182. The cubic root of 70918428 is about 413.9231344612.

The spelling of 70918428 in words is "seventy million, nine hundred eighteen thousand, four hundred twenty-eight".